1. Commersonia bartramia (Linnaeus) Merrill, Interpr. Herb. Amboin. 362. 1917.
山麻树 shan ma shu
Muntingia bartramia Linnaeus, Amoen. Acad. 4: 124. 1759.
Trees, to 15 m tall. Branchlets densely yellow puberulent. Stipules palmately fimbriate; petiole 0.6-1.8 cm, hairy; leaf blade broadly ovate or ovate-lanceolate, 9-24 × 5-14 cm, abaxially densely gray-white puberulent, adaxially sparsely stellate puberulent, base obliquely cordate, margin irregularly dentate
and red ciliate, apex acute or acuminate. Inflorescence terminal or axillary, a compound cyme, 3-21 cm, many-branched. Flowers dense, ca. 5 mm in diam. Sepals 5, ovate, ca. 3 mm, puberulent. Petals 5, white, as long as sepals, base with 2 lateral lobes, apex beltlike. Stamens ca. 0.5 mm, each enclosed by base of subtending petal; staminodes 5, lanceolate, ca. 1.5 mm, both surfaces puberulent. Ovary with ovules 2 per locule. Capsule globose, ca. 2 cm in diam., 5-valved, densely long hispid. Seeds elliptic, black-brown, glossy. Fl. Feb-Oct.
Mixed forests on slopes, open valley forests; 100-400 m. Guangdong, Guangxi, S Yunnan [India, Indonesia, Malaysia, Philippines, Vietnam; Australia].